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7902
2003 May 16
1
data.frame contents are not displayed
Dear r-help,
I need to unite contents of two files with variables into one data
frame, produce some derivative variables from them and store them in
that data frame.
Here is the set of commands (processing first file for now)
data7902<-data.frame(year=NULL,lon=NULL,area=NULL,extent=NULL,area.std=NULL,extent.std=NULL,
area.norm=NULL,extent.norm=NULL);
area7902<-read.table("a7902-15.txt",
col.names=c("year","area","lon"),...